All of the checks were in sealed envelopes and none of them were cashed. Along with the checks were invoices sent to the city and legal documents.

These findings didn't sit well with one Phoenix taxpayer.

"I pay taxes, which means some of my taxes are in here," said David Zorehkey, the man who found the checks in June.

The city auditor wasn't able to figure out how the documents got there -- and although the city says all of the money has been accounted for, one city council member says the investigation wasn't enough.